bin/simple_browser/lib/src/models/webpage_action.dart

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Base class for actions handled by the application's BLOC
class WebPageAction {
  final WebPageActionType op;
  const WebPageAction(this.op);
}

// Operations allowed for browsing
enum WebPageActionType { goForward, goBack, refresh, navigateTo, setFocus }

// Instructs to go to the next page.
class GoForwardAction extends WebPageAction {
  const GoForwardAction() : super(WebPageActionType.goForward);
}

// Instructs to go to the previous page.
class GoBackAction extends WebPageAction {
  const GoBackAction() : super(WebPageActionType.goBack);
}

// Instructs to refresh the current page.
class RefreshAction extends WebPageAction {
  const RefreshAction() : super(WebPageActionType.refresh);
}

// Instructs to navigate to some url.
class NavigateToAction extends WebPageAction {
  final String url;
  NavigateToAction({required this.url}) : super(WebPageActionType.navigateTo);
}

// Instructs to set focus on webview.
class SetFocusAction extends WebPageAction {
  const SetFocusAction() : super(WebPageActionType.setFocus);
}